CEC support was added for Exynos5 in 4.13, but for the Odroids we need to set 'needs-hpd' as well since CEC is disabled when there is no HDMI hotplug signal, just as for the exynos4 Odroid-U3.
This is due to the level-shifter that is disabled when there is no HPD, thus blocking the CEC signal as well. Same close-but-no-cigar board design as the Odroid-U3.
Tested with my Odroid XU4.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com --- diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index f92f95741207..a183b56283f8 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -266,6 +266,7 @@
&hdmicec { status = "okay"; + needs-hpd; };
&hsi2c_4 {
On Mon, Jul 31, 2017 at 01:56:42PM +0200, Hans Verkuil wrote:
CEC support was added for Exynos5 in 4.13, but for the Odroids we need to set 'needs-hpd' as well since CEC is disabled when there is no HDMI hotplug signal, just as for the exynos4 Odroid-U3.
This is due to the level-shifter that is disabled when there is no HPD, thus blocking the CEC signal as well. Same close-but-no-cigar board design as the Odroid-U3.
Tested with my Odroid XU4.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com
Thanks, applied for v4.13.
Best regards, Krzysztof
dri-devel@lists.freedesktop.org
-
Hans Verkuil -
Krzysztof Kozlowski